TSB bank will roll out new 'biometric' technology to its online banking customers this month, which will enable you to log in to your bank account just by looking at your smartphone's camera.
According to TSB, it uses 'Samsung Pass' technology, which encrypts and secures the data on your phone, and will remove the need for memorable information, passwords and other IDs. The bank say that iris scanning is over six times more secure than using a fingerprint sensor.
TSB, which was spun-off from Lloyds Banking Group in 2013, is the first European bank to offer this to customers.
Chaos Computer Club is a German-based group of 5,500 hackers who have 'ethically hacked' into banks, government and other services with the intention of improving security and privacy for consumers since their formation in the early 80's.
It's not clear how far a criminal would go in their pursuit of somebody's online banking details.
A TSB spokesperson said: 'Regardless of how people log in, we continue to use a multi-layered approach to security. We look at customer, device and transaction behaviour to help make sure our customers' accounts are secure.'
Earlier this year, Lloyds Banking Group announced a partnership with Microsoft to allow customers to log into their accounts using facial recognition, while Santander has launched voice recognition technology.
Andrew Laughlin, investigative tech journalist at Which?, said: 'Biometrics are likely to be the de facto security measure in the coming years, but the issue now is that solutions such as fingerprint and iris scanners are spotty in terms of effectiveness and so usually require a 'traditional' back up measure such as a PIN code.
'So, while biometrics can in theory add extra security, the technology has a way to go yet before it's the complete solution.'
If you're unable to access your bank due to an eye condition, there are other authentication measures available, such as a fingerprint scanner.
Common conditions such as dry eyes don't typically affect the iris - the coloured part of your eye - but if you've been drinking enough alcohol to affect your pupil dilatation, you may struggle to log into your app.
Eye scanning tech is nothing new and has been used at British airports since 2006 to speed up passport and immigration checks.
It appears that this has encouraged the public to be more open to biometrics.
According to a study by Mastercard and Oxford University, 93% of people prefer biometrics - such as a fingerprint, an iris scan or a selfie- to log in to their bank online.
TSB's announcement will see the bank to begin to move away from Lloyds Banking Group legacy IT systems. But the use of biometrics will only be available to a small number of customers who use the latest Samsung phone.
Meanwhile, Barclays have integrated the Apple personal assistant Siri into its mobile app to give customers the option of paying a contact by voice.
To make a payment, you just say, for example, 'Pay Adam £20 with Barclays' into the phone's microphone and then place your finger over Apple's Touch ID circular pad to authorise the payment. This can be done without logging into the Barclays app.
To use the Siri feature with Barclays mobile banking you need to have a iPhone 5s or a later version, as well as iOS 10/11.